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Title: Strongly aligned gas-phase molecules at free-electron lasers

Journal Article · · Journal of Physics. B, Atomic, Molecular and Optical Physics
 [1];  [2];  [2];  [3];  [3];  [2];  [4];  [2];  [3];  [5];  [1];  [6];  [7];  [3];  [3];  [3];  [2];  [2];  [8];  [8] more »;  [9];  [10];  [11];  [6];  [2];  [6];  [12];  [13];  [2];  [1] « less
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Univ. of Hamburg, Hamburg (Germany)
  2. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); European X-ray Free Electron Laser (XFEL), GmbH, Hamburg (Germany)
  5. SLAC National Accelerator Lab., Menlo Park, CA (United States); PULSE Institute, Stanford, CA (United States). SLAC National Accelerator Lab.; Stanford Univ., Stanford, CA (United States)
  6. Aarhus Univ., Aarhus (Denmark)
  7. SLAC National Accelerator Lab., Menlo Park, CA (United States); PULSE Institute, Stanford, CA (United States). SLAC National Accelerator Lab.
  8. PULSE Institute, Stanford, CA (United States). SLAC National Accelerator Lab.
  9. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Kansas State Univ., Manhattan, KS (United States)
  10. Kansas State Univ., Manhattan, KS (United States)
  11. Max Planck Institute for Nuclear Physics, Heidelberg (Germany)
  12. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); European X-ray Free Electron Laser (XFEL) GmbH, Hamburg (Germany)
  13. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); SLAC National Accelerator Lab., Menlo Park, CA (United States)
+ Show Author Affiliations

Here, we demonstrate a novel experimental implementation to strongly align molecules at full repetition rates of free-electron lasers. We utilized the available in-house laser system at the coherent x-ray imaging beamline at the linac coherent light source. Chirped laser pulses, i.e., the direct output from the regenerative amplifier of the Ti:Sa chirped pulse amplification laser system, were used to strongly align 2, 5-diiodothiophene molecules in a molecular beam. The alignment laser pulses had pulse energies of a few mJ and a pulse duration of 94 ps. A degree of alignment of $$\langle {\mathrm{cos}}^{2}{\theta }_{2{\rm{D}}}\rangle =0.85$$ was measured, limited by the intrinsic temperature of the molecular beam rather than by the available laser system. With the general availability of synchronized chirped-pulse-amplified near-infrared laser systems at short-wavelength laser facilities, our approach allows for the universal preparation of molecules tightly fixed in space for experiments with x-ray pulses.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1263392
Report Number(s):
SLAC-PUB--16644; arXiv:1506.03650
Journal Information:
Journal of Physics. B, Atomic, Molecular and Optical Physics, Journal Name: Journal of Physics. B, Atomic, Molecular and Optical Physics Journal Issue: 20 Vol. 48; ISSN 0953-4075
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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The LAMP instrument at the Linac Coherent Light Source free-electron laser journal March 2018
Communication: Switched wave packets with spectrally truncated chirped pulses journal June 2018
X-ray diffractive imaging of controlled gas-phase molecules: Toward imaging of dynamics in the molecular frame journal February 2020
Short-wavelength free-electron laser sources and science: a review journal October 2017
Single-molecule techniques in biophysics: a review of the progress in methods and applications journal December 2017
OnDA : online data analysis and feedback for serial X-ray imaging journal May 2016
High-intracavity-power thin-disk laser for the alignment of molecules journal January 2015
Light-sheet imaging for the recording of transverse absolute density distributions of gas-phase particle-beams from nanoparticle injectors journal January 2019
Short-wavelength free-electron laser sources and science: a review text January 2017
Communication: Switched wave packets with spectrally truncated chirped pulses text January 2018
Spatially Separating the Conformers of a Dipeptide text January 2018
The LAMP instrument at the Linac Coherent Light Source free-electron laser text January 2018
X-ray diffractive imaging of controlled gas-phase molecules: Toward imaging of dynamics in the molecular frame text January 2020
Light-sheet imaging for the recording of transverse absolute density distributions of gas-phase particle-beams from nanoparticle injectors text January 2019

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74 ATOMIC AND MOLECULAR PHYSICS
PHYS
alignment
coherent diffractive imaging
controlled molecules
free-electron laser
imaging
laser control
molecular physics